The BOYA BY-M1DM is a Dual Lavalier Universal Microphone, with a single 1/8" stereo connector, it can be used with smartphones, DSLR camears, camcorders, audio recorders, PC and other recording devices.
They are perfect for interviews,presentations, podcasts, webcasts, or any situation where more than one subject needs to be recorded. Its 4m cable provides 2.8m of distance between each microphone for comfortable placement, while the included tie clips allow for hands-free use.
Polar pattern: Omini-directional
Frequency response: 65Hz-18KHz
Signal/Noise: 74dB or more
Output Impadence: 1000Ω or less
Power requirement: LR44 battery